#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main()
{
    const char *filename = "./record.txt";
    struct stat fileStatus;
    stat(filename, &fileStatus);
    /*文件大小*/
    printf("file size: %ld\n", fileStatus.st_size);
    return 0;
}